" On the Motions and Collisions of Perfectly Elastic Spheres " in Philosophical Magazine for January and July, i860. The Scientific Papers of J. Clerk-Maxwell, edited by W. D. Nevin (2 vols.), vol. i., pp. 372-374, Cambridge, 1896. This is a reprint of Maxwell's prize paper of 1859. Mayer, Dr. Julius Robert. See vol. iii., p. 259.
The Forces of Inorganic Nature, 1842. This is Mayer's statement of the conservation of energy. Mendelèepp, Dmitri Ivanovitch. See vol. iv., p. 68.
Principles of Chemistry, 2 vols., London, 1868-1870. (There have been several subsequent editions.)
Oersted, Hans Christian. See vol. iii., p. 236.
Experiments with the Effects of the Electric Current on the Magnetic Needle, published at Berlin, 1816.
Priestley, Joseph. See vol. iv., pp. 20, 36.
Experiments and Observations on Different Kinds of Air, 3 vols., Birmingham, 1790. History of Electricity, 256 vol. ii., p. 280, London, 1775. The Doctrine of Phlogiston Established, 1800.
Ramsay and Ravlbigh. See vol. v., p. 86.
"On an Anomaly Encountered in Determining the Density of Nitrogen Gas," in Proc. Roy. Soc, April, 1894. A statement of the properties of argon was made by the discoverers to the Royal Society, given in Phil. Trans., clxxxvi., p. 187, January, 1895.
ScHBBLB, Karl William. See vol. iv., p. 23.